在"双碳"目标的背景下,为进一步提升新型电力系统的经济效益和环境效益,提出了一种绿证-碳交易机制下新型电力系统电-氢-气混合储能容量优化配置方法.首先,以两阶段电转气作为能源桥梁,提出了考虑电化学储能系统、氢储能系统和气储能系统的新型混合储能系统;其次,为了提升可再生能源消纳、降低碳排放量,引入了绿证-碳联合交易机制,并采用了能源断供/弃能机制,同时提升了系统的可靠性;最后,以新型混合储能系统的全生命周期成本、购能成本、可靠性成本、绿证-碳交易成本之和为目标函数,并采用CPLEX求解器求解.算例分析结果表明,所提方法能在提升可再生能源消纳的同时实现系统的经济性、低碳性、可靠性最优.
In the context of the"dual carbon"goals,in order to further enhance the economic and environmental benefits of the new power system,this paper proposes an optimization configuration method for new hybrid energy storage capacity of electricity-hydrogen-gas under the green certificate-carbon trading mechanism.Firstly,using a two-stage power-to-gas conversion as an energy bridge,a new hybrid energy storage system considering electrochemical energy storage system,hydrogen energy storage system and gas energy storage system is proposed.Secondly,in order to improve the consumption of renewable energy and reduce carbon emissions,the green certificate-carbon joint trading mechanism is introduced,and an energy supply cutoff/energy abandonment mechanism is adopted,improving the reliability of the system.Finally,the total life cycle cost,energy purchase cost,reliability cost and green certificate-carbon trade cost of the new hybrid energy storage system are taken as the objective function,and the CPLEX solver is used to solve the problem.The results of the example analysis show that the proposed method can achieve the optimal economy,low-carbon and reliability of the system while improving the renewable energy consumption.